<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>


    <div id="root">
        姓：<input type="text" v-model="firstName"><br>   <!--  :绑定v-bind,绑定属性 -->
        名：<input type="text" v-model="lastName"><br>    <!--  但是我们这里需要页面上进行输入那么就用v-model -->
        全名：<span></span>
    </div>

    <script type="text/javascript">
        Vue.config.productionTip = false

        const vm = new Vue({
            el:'#root',
            data:{
                firstName:'张',
                lastName:'三'
            }
            
        })
    
    </script>

    
</body>
</html>